Physics Exam Past Questions and Answers | JAMB, WAEC and NECO

Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.

• Question 1281:

  

  Two taxis leave Benin and Agbor some 80km apart at 1200hr as shown above. from the distance time graph shown the distance of their meeting point P, from Benin and the time of their meeting are

  Options:
  A) 27km, 1218hr
  B) 29km, 1315hr
  C) 40km, 1418hr
  D) 53km, 1436hr
  E) 60km, 1500hr
  Show Answer
  The correct answer is B .
• Question 1282: A charge of one coulomb liberates 0.0033g of copper in an electrolytic process. How long will it take a current of 2A to librate 1.98g of copper in such a process? Options:
  A) 5 mins
  B) 30 mins
  C) 50 mins
  D) 60 mins
  E) 120 mins
  Show Answer
  The correct answer is A .
• Question 1283: The difference between X-rays and gamma rays is that Options:
  A) x-rays are more penetrating than gamma rays
  B) x-rays are electromagnetic radiations while gamma rays are negatively charged radiation
  C) x-rays have higher frequencies than gamma rays
  D) x-rays arise from energy changes in the electronic structure of atoms while gamma rays come from the nucleus
  Show Answer
  The correct answer is D .
• Question 1284: The electrochemical equivalent of platinum is 5.0 x 10^-7kgC^-1 to plate-out 1.0kg of platinum, a current of 100A must be passed through an appropriate vessel for Options:
  A) 5.6 hours
  B) 56 hours
  C) 1.4 x 10^{4 hours}
  D) 2.0 x 10^{4 hours}
  Show Answer
  The correct answer is A .
• Question 1285:

  If a force of 50N stretches a wire from 20m to 20.01m, what is the amount of force required to stretch the same material from 20m to 20.05m?

  Options:
  A) 250N
  B) 200N
  C) 100N
  D) 50N
  Show Answer
  The correct answer is A .
• Question 1286: When temperature of a liquid increases, its surface tension Options:
  A) Decreases
  B) Increases
  C) Remain Constant
  D) Increases then decreases
  Show Answer
  The correct answer is A .
• Question 1287:

  In semi-conductor, the carriers of current at room temperature are

  Options:
  A) electrons only
  B) electrons and holes
  C) holes only
  D) electron and ions
  Show Answer
  The correct answer is B .
• Question 1288: Why do soldiers march disorderly while crossing a bridge? Options:
  A) To prevent resonance on the bridge
  B) To set the bridge into resonance
  C) To make the b ridge collapse
  D) To spread their weight evenly on the bridge
  Show Answer
  The correct answer is A .
• Question 1289: The lower and upper fixed points marked on a mecury-in-glass thermometer are 210mm apart. The end of the mercury column in the tube is 49mm above the lower fixed point in a room. What is the temperature of the room in degrees Celsius? Options:
  A) 55.3^oC
  B) 23.3^oC
  C) 49.0^oC
  D) 16.1^oC
  E) 76.7^oC
  Show Answer
  The correct answer is B .
• Question 1290: An ebonite rod rubbed with fur attracts a glass rod rubbed with silk because Options:
  A) ebonite has a negative charge while glass has a positive charge
  B) ebonite has a positive charge while glass has a negative charge
  C) both have negative charges
  D) both have positive charges
  Show Answer
  The correct answer is A .